Perhaps you should try some spelling variations:
"dong xuan chin snippets" » "hoang xuan chin snippets", "dinh xuan chin snippets", "dong cua chin snippets", "dong luan chinh snippets", "dong xuan chanh snippets", "dong xuan chung snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong xuan chin snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong xuan chin snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong xuan chin snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong xuan chin snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.